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#include <iostream>
#include <fstream>
using namespace std;

unsigned long long solve(unsigned long long l,unsigned long long r)
{

    bool q;
    unsigned long long x = 0, p = l;
    for(unsigned long long i = l;i <= r;i++)
    {
        q = true;
        p = i;
        while(p!=0)
        {
            if(p%10 != 0)
            {
            if(i%(p%10)!=0)
                {
                q = false;
                break;
                }
            }
            else{
                q = false;
                break;
                }
            p /= 10;
        }
        if(q)
        {
            x++;
        }
    }
    return x;
}

int main()
{
    unsigned long long l,r,p;
    cin >> l >> r;
    cout << solve(l,r);
    return 0;
}